An off-by-one error could cause tokens to be forgotten. Suppose
tokens := []string{"foo", "bar", "baz", "quux"}
i := 2
token := tokens[i] // token == "baz"
Then, after
copy(tokens[1:], tokens[:i+1])
tokens[0] = token
we have
tokens == []string{"baz", "foo", "bar", "baz"}
The short test actually relied on this bug.
This commit replaces `os.MkdirTemp` with `t.TempDir` in tests. The
directory created by `t.TempDir` is automatically removed when the test
and all its subtests complete.
Prior to this commit, temporary directory created using `os.MkdirTemp`
needs to be removed manually by calling `os.RemoveAll`, which is omitted
in some tests. The error handling boilerplate e.g.
defer func() {
if err := os.RemoveAll(dir); err != nil {
t.Fatal(err)
}
}
is also tedious, but `t.TempDir` handles this for us nicely.
Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
Showing all folders from disconnected or paused remote devices as
unaccepted would be a lot of false positives. As we cannot know
whether the remote has accepted while it doesn't have an active
connection, let's better report false negatives, as in assuming the
folders are accepted.
* lib/api: Note ItemStarted and ItemFinished for default filtering.
The reasoning why LocalChangeDetected and RemoteChangeDetected events
are not included in the event stream by default (without explicit
filter mask requested) also holds for the ItemStarted and ItemFinished
events. They should be excluded as well when we start to break the
API compatibility for some reason.
* gui: Enumerate unused event types in the eventService.
Define constants for the unused event types as well, for completeness'
sake. They are intentionally not handled in the GUI currently.
* cmd/syncthing: Harmonize uppercase CLI argument placeholders.
Use ALL-UPPERCASE and connecting dashes to distinguish argument
placeholders from literal argument options (e.g. "cpu" or "heap" for
profiling). The dash makes it clear which words form a single
argument and where a new argument starts.
This style is already used for the "syncthing cli debug file" command.
* lib/model: Simplify event data structure.
Using map[string]interface{} is not necessary when all values are
known to be strings.
Having a separate mutex for the three or four instructions needed to
fetch and increment nextID means the overhead exceeds the cost of this
operation. nextID is now handled inside the critical section for
awaiting instead, while the more expensive channel creation has been
moved outside it.
This is mostly a simplification, though it may have minor performance
benefits in some situations. The single-threaded sender benchmark shows
no significant difference:
name old speed new speed delta
RequestsRawTCP-8 55.3MB/s ± 7% 56.6MB/s ± 6% ~ (p=0.190 n=10+10)
RequestsTLSoTCP-8 20.5MB/s ±20% 20.8MB/s ± 8% ~ (p=0.604 n=10+9)
Staggered File Versioning used to have its own cleanInterval that
controlled how often file versions were cleaned. Nowadays, there is a
seperate setting called cleanupIntervalS responsible for the cleanup,
which applies to all File Versioning (except External). Thus, remove the
unneeded code and don't set the param up on new folders anymore.
Signed-off-by: Tomasz Wilczyński <twilczynski@naver.com>
* lib/protocol: Require at least 3.125% savings from compression
The new lz4 library doesn't need its output buffer to be the maximum
size, unlike the old one (which would allocate if it weren't). It can
take a buffer that is of a smaller size and will report if compressed
data can fit inside the buffer (with a small chance of reporting a false
negative). Use that property to our advantage by requiring compressed
data to be at most n-n/32 = .96875*n bytes long for n input bytes.
* lib/protocol: Remove unused receivers
To make DeepSource happy.
* lib/protocol: Micro-optimize lz4Compress
Only write the length if compression was successful. This is a memory
write, so the compiler can't reorder it.
Only check the return value of lz4.CompressBlock. Length-zero inputs
are always expanded by LZ4 compression (the library documents this),
so the check on len(src) isn't needed.
* lib/model: Remove bogus fields from connections API endpoint.
Switch the returned data type for the /rest/system/connections element
"total" to use only the Statistics struct. The other fields of the
ConnectionInfo struct are not populated and misleading.
* Lowercase JSON field names.
* lib/model: Get rid of ConnectionInfo.MarshalJSON().
It was missing the StartedAt field from the embedded Statistics
struct. Just lowercasing the JSON attribute names can be done just as
easily with annotations.
* lib/model: Remove bogus startedAt field from totals.
Instead of using the Statistics type with one field empty, just switch
to a free-form map with the three needed fields.
* cmd/syncthing: Remove unnecessary function arguments.
The openGUI() function does not need a device ID to work, and there is
only one caller anyway which uses EmptyDeviceID.
The loadOrDefaultConfig() function is always called with the same
dummy values.
* cmd/syncthing: Avoid misleading info messages from monitor process.
In order to check whether panic reporting is enabled, the monitor
process utilizes the loadOrDefaultConfig() function. In case there is
no config file yet, info messages may be logged during creation if the
config Wrapper, which is discarded immediately after.
Stop using the DefaultConfig() utility function from lib/syncthing and
directly generate a minimal config instead to avoid these.
Add comments to loadOrDefaultConfig() explaining its limited purpose.
* cmd/syncthing/generate: Always write updated config file.
Previously, an existing config file was left untouched unless either
of the --gui-user or --gui-password options was given. Remove that
condition and simplify the checking code.
* lib/config: Factor out ProbeFreePorts().
* cmd/syncthing: Add option --skip-port-probing.
Applies to both the "generate" and "serve" subcommands, as well as the
deprecated --generate option, just as the --no-default-folder flag.
